Repair And Fix it

Turn off the ignition. Remove the fuse for the fuel pump, using the list on the fuse box as a guide. Start the engine and allow it to idle until it stalls. Turn the ignition off and disconnect the negative battery cable with a socket wrench. Replace the fuel pump fuse.

Wrap a clean shop rag around one of the fuel-line connections to the fuel rail. Loosen the retaining nuts for the fuel line with a socket wrench to relieve the pressure in the fuel tank. Properly dispose of the rag.

Remove the retaining nuts for the fuel lines, and detach the fuel lines from the fuel rail. Disconnect the mounting bolts for the fuel rail with a socket wrench, and remove the fuel rail from the intake manifold with the injectors still attached. Turn the fuel injectors counterclockwise to remove them from the fuel rail.

Mount a new lower gasket to the nozzle end of the fuel injectors. Clean the threads of the fuel injectors with a clean shop rag, and apply a thin layer of thread-lock compound to the threads. Screw the fuel injectors clockwise with a socket wrench to install them into the fuel rail, and mount a new upper gasket to the open end of the fuel injectors.

Mount the fuel rail to the intake manifold, and fasten the mounting bolts with a socket wrench. Connect the fuel lines to the fuel rail, and fasten the retaining nuts for the fuel lines. Reattach the cable for the negative battery terminal.

Turn the key in the ignition to get your A6s instrument panel to engage. Look over the dials on the gauges and make sure that you have enough fuel to start the vehicle. If you dont have enough gas, fill the tank up and try to start the car again. If the instrument panel does not light up, you have a problem with your battery.

Open the hood with the hood release latch on the driver side under the steering wheel. Raise the hood and lock it in place with the hood rod. Check over the connections to the battery on the left side of the car.

Tighten the connections with a pair of pliers. Make sure that you dont have any corrosion on the battery cables. Clean the cables with soda and a wire brush to remove any corrosion.

Test the battery with a voltmeter to check its charge. If you have less than 11 volts running on your 12-volt battery, attach a battery charger to the battery terminals.

Leave the battery charger on the battery for at least 12 hours to charge the unit. Try to restart your car. If the car does not restart, replace the battery with a new one.

Locate the cooling system on the left side of the car if your A6 is overheating. This is labeled as "Coolant." Make sure that you have enough coolant in the system. Fill the coolant tank with 50/50 mix of coolant and water until it reaches the fill line on the side of the tank.